| Abstract: | Various technologies for continuous-variable quantum key distribution
without transmitting a transmitter's local oscillator are described
herein. A receiver on an optical transmission channel uses an oscillator
signal generated by a light source at the receiver's location to perform
interferometric detection on received signals. An optical reference pulse
is sent by the transmitter on the transmission channel and the receiver
computes a phase offset of the transmission based on quadrature
measurements of the reference pulse. The receiver can then compensate for
the phase offset between the transmitter's reference and the receiver's
reference when measuring quadratures of received data pulses. |